Latex tube production is a technology, but also has the general rules of law, the following Xiaobian share dry cargo latex tube sizing material shrinkage, we hope to effect.
The influencing factors of A. sizing material shrinkage: curing temperature is higher (more than positive sulfuration temperature), the larger shrinkage. In general, temperature rise every 10 degrees C, the shrinkage rate is increased by 0.1% ~ 0.2%.
B. latex tube sizing material rolling direction and the direction of flow in the moldshrinkage rate is greater than the vertical shrinkage rate; the longer the flow distance, the larger shrinkage.
C. semi-finished latex tube more glue quantity, finished product density is higher,its shrinkage is smaller.
The plasticity of D. latex glue tube is more big, the shrinkage ratio is small;rubber hardness increases smaller shrinkage rate.
E. filler content increasing, the shrinkage ratio is small; rubber content is higher,the larger shrinkage.
F. multi cavity mold, the middle cavity extrusion product shrinkage rate is slightly smaller than the edge of cavity shrinkage rate of goods.
G. injection method for product rate smaller than the molding shrinkage.
H. thin products (section thickness less than 3mm) than thick products (above 10mm) large shrinkage rate of 0.2% ~ 0.6%.
This article from the Shenzhen City Qiyu Silicone Rubber Co., Ltd.: http://www.szhcty.com/news_v.asp? Id=194
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